SYNTHORA

Endpoints and prices

Payment evidence

402 payload captured at 2026-10-26 21:13:42 UTC. Check evidence JSON · Measurement methodology.

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/agentcard",
      "description": "Agent Card Validator (A2A): given an Agent Card URL or JSON, deterministically validates it against the A2A spec — required fields, skill schemas, endpoint reachability, security schemes, provider transparency — and returns a compatibility_score, schema_errors and warnings. The trust layer for the agent economy. Deterministic, Ed25519-signed. 0.01 USDC via x402 on Base. SYNTHORA.",
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/agentcard",
    "tags": [
      "agentcard"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Agent Card Validator (A2A): given an Agent Card URL or JSON, deterministically validates it against the A2A spec — required fields, skill schemas, endpoint reachability, security schemes, provider transparency — and returns a compatibility_score, schema_errors and warnings. The trust layer for the agent economy. Deterministic, Ed25519-signed. 0.01 USDC via x402 on Base. SYNTHORA.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "card": {
              "url": "https://example.org",
              "name": "Demo Agent",
              "skills": [
                {
                  "id": "chat",
                  "name": "chat",
                  "description": "conversational"
                }
              ],
              "version": "1.0.0",
              "description": "A2A agent card audit demo"
            }
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "agent_card",
            "result": {
              "signed": "ed25519",
              "verdict": "buena",
              "warnings": [
                "falta campo recomendado: documentationUrl"
              ],
              "skills_count": 1,
              "schema_errors": [],
              "a2a_conformant": true,
              "endpoint_status": 200,
              "pricing_declared": false,
              "security_declared": true,
              "compatibility_score": 82
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "properties": {
                  "url": {
                    "type": "string",
                    "description": "URL of the A2A Agent Card (.well-known/agent-card.json)"
                  },
                  "card": {
                    "type": "object",
                    "description": "Or paste the Agent Card JSON directly"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/deliver",
      "description": "Audit a domain's email deliverability and sender reputation. Checks SPF, DKIM selectors, DMARC policy strength (reject/quarantine/none), BIMI, MX and PTR records, returning a spam score and prioritized fixes. Use it to assess inbox placement, email authentication and domain reputation before sending. Deterministic DNS-only, Ed25519-signed. 0.001 USDC on Base. First call FREE per wallet — send header X-WALLET: 0x<your Base address> (no payment); then \\ per call.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/deliver",
    "tags": [
      "deliver"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Audit a domain's email deliverability and sender reputation. Checks SPF, DKIM selectors, DMARC policy strength (reject/quarantine/none), BIMI, MX and PTR records, returning a spam score and prioritized fixes. Use it to assess inbox placement, email authentication and domain reputation before sending. Deterministic DNS-only, Ed25519-signed. 0.001 USDC on Base. First call FREE per wallet — send header X-WALLET: 0x<your Base address> (no payment); then \\ per call.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/mtasts",
      "description": "SYNTHORA mtasts: sMTP transport-security audit: MTA-STS (RFC 8461) + TLS-RPT (RFC 8460). Resolves the policy DNS records, fetches and parses the well-known policy file, cross-validates the policy mx: patterns against the domain's real MX, and returns an enforce/report verdict. Complements SPF/DKIM/DMARC auditing with the TLS transport layer. Deterministic, Ed25519-signed. SYNTHORA.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/mtasts",
    "tags": [
      "domain",
      "email",
      "security",
      "infrastructure",
      "threat-intel",
      "exposure"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "SYNTHORA mtasts: sMTP transport-security audit: MTA-STS (RFC 8461) + TLS-RPT (RFC 8460). Resolves the policy DNS records, fetches and parses the well-known policy file, cross-validates the policy mx: patterns against the domain's real MX, and returns an enforce/report verdict. Complements SPF/DKIM/DMARC auditing with the TLS transport layer. Deterministic, Ed25519-signed. SYNTHORA.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "op": "check",
            "domain": "example.com"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "mtasts",
            "result": {
              "score": 100,
              "domain": "example.com",
              "issues": [],
              "mta_sts": {
                "mx": [
                  "*.mail.example.com"
                ],
                "mode": "enforce",
                "max_age": 604800,
                "dns_present": true,
                "mx_matches_dns": true,
                "policy_reachable": true
              },
              "tls_rpt": {
                "present": true
              },
              "verdict": "enforced+reporting"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "domain"
                ],
                "properties": {
                  "op": {
                    "enum": [
                      "check",
                      "mtasts",
                      "tlsrpt"
                    ],
                    "type": "string",
                    "description": "Audit scope (default check = full)"
                  },
                  "domain": {
                    "type": "string",
                    "description": "Domain or email address to audit"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/amlscreen",
      "description": "AML & sanctions screening for any crypto wallet or entity name: cross-checks the Chainalysis sanctions oracle, TRM, OFAC SDN and GoPlus illicit-activity flags (mixer, phishing, laundering), returning sanctioned yes/no, matched lists and an AML risk score, Ed25519-signed as firmable evidence. For compliance agents, KYT onboarding and Travel-Rule checks before paying an address. Part of the SYNTHORA Compliance Screening Pack. 0.05 USDC via x402 on Base.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/amlscreen",
    "tags": [
      "AML screening",
      "sanctions screening",
      "wallet risk / sanctions screening",
      "OFAC SDN",
      "Chainalysis",
      "TRM",
      "KYT",
      "illicit activity",
      "compliance screening pack",
      "Travel Rule",
      "KYC onboarding"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "AML & sanctions screening for any crypto wallet or entity name: cross-checks the Chainalysis sanctions oracle, TRM, OFAC SDN and GoPlus illicit-activity flags (mixer, phishing, laundering), returning sanctioned yes/no, matched lists and an AML risk score, Ed25519-signed as firmable evidence. For compliance agents, KYT onboarding and Travel-Rule checks before paying an address. Part of the SYNTHORA Compliance Screening Pack. 0.05 USDC via x402 on Base.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "address": "0x28C6c06298d514Db089934071355E5743bf21d60"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "ok",
              "niche"
            ],
            "properties": {
              "ok": {
                "type": "boolean"
              },
              "error": {
                "type": "string"
              },
              "niche": {
                "type": "string"
              },
              "result": {
                "type": "object",
                "properties": {
                  "hits": {
                    "type": "array"
                  },
                  "input": {
                    "type": "string"
                  },
                  "signal": {
                    "type": "string"
                  },
                  "check_type": {
                    "type": "string"
                  },
                  "risk_score": {
                    "type": "number"
                  },
                  "lists_checked": {
                    "type": "array"
                  }
                }
              },
              "receipt": {
                "type": "object"
              }
            }
          },
          "example": {
            "ok": true,
            "niche": "aml_screening",
            "result": {
              "hits": [],
              "input": "0x...",
              "signal": "clean",
              "risk_score": 0,
              "lists_checked": [
                "CHAINALYSIS_ORACLE",
                "TRM_SANCTIONS",
                "OFAC_SDN_inline",
                "GOPLUS_ADDRESS"
              ]
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [],
                "properties": {
                  "name": {
                    "type": "string",
                    "description": "Optional entity name for OFAC name search"
                  },
                  "address": {
                    "type": "string",
                    "description": "EVM address to screen (0x...)"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/tokenrisk",
      "description": "SYNTHORA tokenrisk: AI verdict on ANY token — honeypot/rug/hidden-mint/owner-privileges scan WITH evidence + Ed25519-signed receipt. x402 Base.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/tokenrisk",
    "tags": [
      "token security",
      "is this token a honeypot",
      "honeypot check",
      "rug pull detection",
      "token risk score",
      "token security check before approve",
      "buy sell tax",
      "mintable pausable",
      "hidden owner",
      "ownership renounced",
      "smart contract risk",
      "GoPlus"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "SYNTHORA tokenrisk: AI verdict on ANY token — honeypot/rug/hidden-mint/owner-privileges scan WITH evidence + Ed25519-signed receipt. x402 Base.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "chain": "base",
            "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "token_risk",
            "result": {
              "flags": [],
              "goplus": {
                "buy_tax": "0",
                "sell_tax": "0",
                "is_honeypot": "0"
              },
              "verdict": "safe",
              "risk_level": "low",
              "token_symbol": "USDC",
              "owner_renounced": true
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "address"
                ],
                "properties": {
                  "chain": {
                    "enum": [
                      "base",
                      "ethereum"
                    ],
                    "type": "string",
                    "description": "Chain (default base)"
                  },
                  "address": {
                    "type": "string",
                    "description": "Token contract address (0x...)"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "20000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/protocol-tvl",
      "description": "SYNTHORA protocol-tvl: tVL de un protocolo con su CUOTA sobre el TVL total y su puesto en el ranking: contexto que el dato suelto no da.",
      "maxAmountRequired": "20000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/protocol-tvl",
    "tags": [
      "defi",
      "onchain",
      "analytics",
      "markets",
      "x402",
      "signed-verdict"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "SYNTHORA protocol-tvl: tVL de un protocolo con su CUOTA sobre el TVL total y su puesto en el ranking: contexto que el dato suelto no da.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "protocol": "lido"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "protocol_tvl",
            "result": {
              "senal": "concentra el 3.6007% del TVL DeFi total y ocupa el puesto 4",
              "fuente": "<omitido en el ejemplo publico>",
              "tvl_usd": 17522595363.252792,
              "protocol": "lido",
              "as_of_utc": "2026-08-05T16:31:36Z",
              "latencia_s": 0.52,
              "puesto_por_tvl": 4,
              "tvl_total_defi_usd": 486638092376.16034,
              "cuota_sobre_tvl_total_pct": 3.6007
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "properties": {
                  "input": {
                    "type": "string",
                    "description": "SYNTHORA protocol-tvl: tVL de un protocolo con su CUOTA sobre el TVL total y su puesto en el ranking: contexto que el dato suelto no da."
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/payto-preflight",
      "description": "Compare an exact resource URL, recipient, network and asset with the stored registry snapshot; amount and delivery are not guaranteed. Reports source last_seen separately from request capture time. Inactive or stale records give unknown current availability; no live endpoint, settlement, fraud or delivery guarantee. Database failure is not chargeable.",
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/payto-preflight",
    "mimeType": "application/json",
    "description": "Compare an exact resource URL, recipient, network and asset with the stored registry snapshot; amount and delivery are not guaranteed. Reports source last_seen separately from request capture time. Inactive or stale records give unknown current availability; no live endpoint, settlement, fraud or delivery guarantee. Database failure is not chargeable."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "chain": "eip155:8453",
            "endpoint_url": "https://who-gho-indicator-timeseries.hergertsynthora.com/service",
            "expected_asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "expected_payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "result": {
              "ok": true,
              "niche": "payto_preflight",
              "result": {},
              "partial": true,
              "schema_version": "1.0.0"
            },
            "receipt": {},
            "_documentation": {
              "state": "SCHEMA_ONLY_NOT_A_DELIVERY",
              "freshness": "NOT_ASSERTED",
              "payment_receipt": "NOT_PRESENT"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "endpoint_url"
                ],
                "properties": {
                  "chain": {
                    "type": "string"
                  },
                  "endpoint_url": {
                    "type": "string",
                    "format": "uri"
                  },
                  "expected_asset": {
                    "type": "string"
                  },
                  "expected_payTo": {
                    "type": "string"
                  }
                },
                "additionalProperties": false
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "bodyType": {
                "type": "string",
                "const": "json"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type",
              "example"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "json"
              },
              "example": {
                "type": "object",
                "required": [
                  "ok",
                  "result"
                ],
                "properties": {
                  "ok": {
                    "type": "boolean"
                  },
                  "result": {
                    "type": "object",
                    "required": [
                      "ok",
                      "niche"
                    ],
                    "properties": {
                      "ok": {
                        "type": "boolean"
                      },
                      "error": {
                        "type": "string"
                      },
                      "niche": {
                        "type": "string",
                        "const": "payto_preflight"
                      },
                      "result": {
                        "type": "object"
                      },
                      "partial": {
                        "type": "boolean"
                      },
                      "schema_version": {
                        "type": "string"
                      }
                    }
                  },
                  "receipt": {
                    "type": "object"
                  },
                  "_documentation": {
                    "type": "object"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/market-dominance",
      "description": "SYNTHORA market-dominance: BTC and ETH market dominance contrasted between TWO independent providers (CoinGecko and Coinlore), reporting the discrepancy in percentage points and a confidence grade — you get not just the number but whether the number can be trusted. Deterministic, Ed25519-signed. $0.05 USDC on Base.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/market-dominance",
    "tags": [
      "defi",
      "onchain",
      "analytics",
      "markets",
      "x402",
      "signed-verdict"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "SYNTHORA market-dominance: BTC and ETH market dominance contrasted between TWO independent providers (CoinGecko and Coinlore), reporting the discrepancy in percentage points and a confidence grade — you get not just the number but whether the number can be trusted. Deterministic, Ed25519-signed. $0.05 USDC on Base.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "input": "latest"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "market_dominance",
            "result": {
              "senal": "DISCREPANCIA de 2.0474 pp entre los dos observadores sobre la dominancia de BTC: difieren en que universo de monedas cuentan; usa el dato con reserva",
              "activo": "BTC",
              "mercado": {
                "cambio_mcap_24h_pct": 0.7526734248279898,
                "vol_24h_usd__observador_1": 56761379043.38263,
                "mcap_total_usd__observador_1": 2295392767065.4966,
                "mcap_total_usd__observador_2": 2204884145726.574
              },
              "as_of_utc": "2026-08-05T18:32:32Z",
              "confianza": "media",
              "latencia_s": 0.34,
              "degradacion": {
                "de": 2,
                "fallos": [],
                "fuentes_vivas": 2
              },
              "observadores": {
                "n": 2,
                "clase": "proveedores independientes de datos de mercado",
                "independencia": "distinto universo de monedas contadas"
              },
              "dominancia_pct": {
                "observador_1": 56.5425644813439,
                "observador_2": 58.59
              },
              "discrepancia_pp": 2.0474,
              "dominancia_completa__observador_1": {
                "bnb": 3.4844691054792953,
                "btc": 56.5425644813439,
                "eth": 10.09653383187638,
                "sol": 1.8882736582960438,
                "trx": 1.3550254187552544,
                "xrp": 2.916078335417036,
                "usdc": 3.131389199794474,
                "usdt": 7.973493292224553,
                "steth": 0.789703952729928,
                "figr_heloc": 0.944722954428762
              }
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "properties": {
                  "input": {
                    "type": "string",
                    "description": "SYNTHORA market-dominance: BTC and ETH market dominance contrasted between TWO independent providers (CoinGecko and Coinlore), reporting the discrepancy in percentage points and a confidence grade — y"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "150000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/wallet-enrich",
      "description": "Wallet enrichment for any EVM wallet (0x address or ENS name) in one call: 0-100 risk score with low/medium/high level, sanctions exposure screening (OFAC SDN wallet lists: Tornado Cash, Lazarus, Garantex), on-chain activity on Ethereum + Base (native balance, transaction count, contract-vs-EOA detection) and labels (ENS reverse record, GoPlus address-security flags: phishing, mixer, cybercrime, money laundering, blacklist). Built for agents that need wallet enrichment + risk + sanctions data before paying, onboarding or transacting with a counterparty. No charge on service failure. Ed25519-signed. $0.15 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.",
      "maxAmountRequired": "150000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/wallet-enrich",
    "tags": [
      "data",
      "security",
      "risk",
      "sanctions",
      "wallet",
      "x402"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Wallet enrichment for any EVM wallet (0x address or ENS name) in one call: 0-100 risk score with low/medium/high level, sanctions exposure screening (OFAC SDN wallet lists: Tornado Cash, Lazarus, Garantex), on-chain activity on Ethereum + Base (native balance, transaction count, contract-vs-EOA detection) and labels (ENS reverse record, GoPlus address-security flags: phishing, mixer, cybercrime, money laundering, blacklist). Built for agents that need wallet enrichment + risk + sanctions data before paying, onboarding or transacting with a counterparty. No charge on service failure. Ed25519-signed. $0.15 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "address": "vitalik.eth"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "ok",
              "niche"
            ],
            "properties": {
              "ok": {
                "type": "boolean"
              },
              "error": {
                "type": "string"
              },
              "niche": {
                "type": "string"
              },
              "result": {
                "type": "object",
                "properties": {
                  "ens": {
                    "type": "string"
                  },
                  "risk": {
                    "type": "object"
                  },
                  "labels": {
                    "type": "array"
                  },
                  "address": {
                    "type": "string"
                  },
                  "activity": {
                    "type": "object"
                  },
                  "sanctions": {
                    "type": "object"
                  },
                  "disclaimer": {
                    "type": "string"
                  },
                  "data_sources": {
                    "type": "array"
                  }
                }
              },
              "receipt": {
                "type": "object"
              }
            }
          },
          "example": {
            "ok": true,
            "niche": "wallet_enrich",
            "result": {
              "ens": "vitalik.eth",
              "risk": {
                "level": "low",
                "score": 0,
                "reasons": []
              },
              "labels": [
                "ens:vitalik.eth"
              ],
              "address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
              "activity": {
                "base": {
                  "tx_count": 70,
                  "balance_eth": 3.1288
                },
                "ethereum": {
                  "tx_count": 5956,
                  "balance_eth": 6.7179
                }
              },
              "sanctions": {
                "match": null,
                "status": "CLEAR",
                "lists_checked": [
                  "OFAC_SDN_wallets",
                  "TornadoCash",
                  "Lazarus",
                  "Garantex"
                ]
              },
              "data_sources": [
                "onchain-rpc",
                "sanctions-lists(OFAC)",
                "ens-reverse",
                "goplus-address-security"
              ]
            },
            "signed": "ed25519"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "address"
                ],
                "properties": {
                  "address": {
                    "type": "string",
                    "description": "EVM wallet address (0x...) or ENS name (e.g. vitalik.eth)"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/walletrep",
      "description": "Wallet risk & reputation score before you send funds: ONE call crosses on-chain sanctions oracles (Chainalysis, TRM, OFAC SDN) with GoPlus security flags (phishing, blacklist, mixer, malicious activity), contract-vs-EOA detection and tx history into a 0-100 score + clean/suspicious/blacklisted verdict, Ed25519-signed as firmable evidence. Built for KYT, counterparty due diligence and pre-transfer compliance screening of any EVM address. Part of the SYNTHORA Compliance Screening Pack. First call FREE per wallet (X-WALLET). 0.05 USDC via x402 on Base.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/walletrep",
    "tags": [
      "wallet risk score",
      "wallet reputation",
      "wallet risk / sanctions screening",
      "sanctions screening",
      "OFAC",
      "counterparty risk",
      "phishing address",
      "blacklist check",
      "KYT",
      "compliance screening pack",
      "pre-transfer check",
      "Travel Rule",
      "wallet due diligence"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Wallet risk & reputation score before you send funds: ONE call crosses on-chain sanctions oracles (Chainalysis, TRM, OFAC SDN) with GoPlus security flags (phishing, blacklist, mixer, malicious activity), contract-vs-EOA detection and tx history into a 0-100 score + clean/suspicious/blacklisted verdict, Ed25519-signed as firmable evidence. Built for KYT, counterparty due diligence and pre-transfer compliance screening of any EVM address. Part of the SYNTHORA Compliance Screening Pack. First call FREE per wallet (X-WALLET). 0.05 USDC via x402 on Base.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "chain": "ethereum",
            "address": "0x28C6c06298d514Db089934071355E5743bf21d60"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "wallet_rep",
            "result": {
              "flags": [],
              "address": "0x...",
              "tx_count": 0,
              "risk_tier": "clean",
              "sanctioned": false,
              "is_contract": false,
              "goplus_flags": [],
              "reputation_score": 100,
              "sanctions_sources": []
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "address"
                ],
                "properties": {
                  "chain": {
                    "enum": [
                      "base",
                      "ethereum"
                    ],
                    "type": "string",
                    "description": "Chain (default base)"
                  },
                  "address": {
                    "type": "string",
                    "description": "EVM wallet address (0x...)"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/usgs-realtime-streamflow",
      "description": "Returns real-time instantaneous streamflow (discharge) and gage height for any USGS water-monitoring site as JSON from USGS Water Services, keyless. Autonomous hydrology, agriculture, flood-warning and hydropower agents consume it for A2A water-resource monitoring and agent-to-agent flood modeling. Ranking surface: streamflow API, USGS water services, gage height, river discharge, NWIS, hydrology. Pay-per-call via x402 on Base. No charge on upstream failure.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/usgs-realtime-streamflow",
    "tags": [
      "usgs"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Returns real-time instantaneous streamflow (discharge) and gage height for any USGS water-monitoring site as JSON from USGS Water Services, keyless. Autonomous hydrology, agriculture, flood-warning and hydropower agents consume it for A2A water-resource monitoring and agent-to-agent flood modeling. Ranking surface: streamflow API, USGS water services, gage height, river discharge, NWIS, hydrology. Pay-per-call via x402 on Base. No charge on upstream failure.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "site": "01646500"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "usgs_realtime_streamflow",
            "result": {},
            "receipt": {
              "alg": "ed25519"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "properties": {
                  "input": {
                    "type": "string",
                    "description": "Returns real-time instantaneous streamflow (discharge) and gage height for any USGS water-monitoring site as JSON from USGS Water Services, keyless. Autonomous hydrology, agriculture, flood-warning an"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "320000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/codeaudit",
      "description": "Multi-LLM Smart Contract Audit: 3 independent LLM perspectives (security, logic, gas) + static pattern scan on Solidity/Vyper source. Severity: clean/low/medium/high/critical. Ed25519-signed, publishable on-chain. POST {\"source\":\"pragma solidity...\",\"language\":\"solidity\"} or {\"address\":\"0x..\",\"chain\":\"base\"} for Sourcify-verified contracts.",
      "maxAmountRequired": "320000",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/codeaudit",
    "tags": [
      "security",
      "llm",
      "base"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Multi-LLM Smart Contract Audit: 3 independent LLM perspectives (security, logic, gas) + static pattern scan on Solidity/Vyper source. Severity: clean/low/medium/high/critical. Ed25519-signed, publishable on-chain. POST {\"source\":\"pragma solidity...\",\"language\":\"solidity\"} or {\"address\":\"0x..\",\"chain\":\"base\"} for Sourcify-verified contracts.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "source": "pragma solidity ^0.8.0; contract Vault { address public owner; mapping(address=>uint) public bal; constructor(){owner=msg.sender;} function deposit() external payable { bal[msg.sender]+=msg.value; } function withdraw(uint a) external { require(bal[msg.sender]>=a); (bool ok,)=msg.sender.call{value:a}(\"\"); require(ok); bal[msg.sender]-=a; } }",
            "language": "solidity"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "code_audit",
            "result": {},
            "receipt": {
              "alg": "ed25519"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "source"
                ],
                "properties": {
                  "chain": {
                    "type": "string"
                  },
                  "source": {
                    "type": "string",
                    "description": "Solidity/Vyper source to audit"
                  },
                  "address": {
                    "type": "string",
                    "description": "OR a Sourcify-verified contract address"
                  },
                  "language": {
                    "type": "string"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "320000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/contractwatch",
      "description": "SYNTHORA contractwatch: verdict de seguridad de contrato on-chain que SI lee el bytecode (eth_getCode) y slots de proxy (EIP-1967/zeppelinos/UUPS/beacon), owner() y privilegios ocultos: honeypot, rug-pull, hidden mint. Correlacionado entre fuentes independientes y firmado Ed25519. 0.32 USDC via x402 on Base. POST {\"address\": \"0x...\", \"chain\": \"base\"}",
      "maxAmountRequired": "320000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/contractwatch",
    "tags": [
      "onchain",
      "security",
      "smart-contracts",
      "blockchain",
      "x402",
      "signed-verdict"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "SYNTHORA contractwatch: verdict de seguridad de contrato on-chain que SI lee el bytecode (eth_getCode) y slots de proxy (EIP-1967/zeppelinos/UUPS/beacon), owner() y privilegios ocultos: honeypot, rug-pull, hidden mint. Correlacionado entre fuentes independientes y firmado Ed25519. 0.32 USDC via x402 on Base. POST {\"address\": \"0x...\", \"chain\": \"base\"}",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/yahoo-equity-delayed-quote",
      "description": "Delayed real-time quote and intraday OHLCV for any stock or ETF ticker (price, day high/low, 52-week range, volume) from Yahoo Finance's keyless chart endpoint (JSON). Powers autonomous equity-screening agents and agent-to-agent trading bots needing per-symbol quotes without an API key. Pay-per-call via x402 on Base. No charge on upstream failure.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/yahoo-equity-delayed-quote",
    "tags": [
      "yahoo"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Delayed real-time quote and intraday OHLCV for any stock or ETF ticker (price, day high/low, 52-week range, volume) from Yahoo Finance's keyless chart endpoint (JSON). Powers autonomous equity-screening agents and agent-to-agent trading bots needing per-symbol quotes without an API key. Pay-per-call via x402 on Base. No charge on upstream failure.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "range": "5d",
            "symbol": "AAPL",
            "interval": "1d"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "yahoo_equity_delayed_quote",
            "result": {},
            "receipt": {
              "alg": "ed25519"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "properties": {
                  "input": {
                    "type": "string",
                    "description": "Delayed real-time quote and intraday OHLCV for any stock or ETF ticker (price, day high/low, 52-week range, volume) from Yahoo Finance's keyless chart endpoint (JSON). Powers autonomous equity-screeni"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/fear-greed",
      "description": "SYNTHORA fear-greed: indice de miedo/codicia con la VARIACION frente a ayer y el cruce de banda, no solo el valor. Fuente: alternative.me, fechada y con hash.",
      "outputSchema": {
        "input": {
          "body": {
            "input": "latest"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "fear_greed",
            "result": {
              "senal": "el indice cambia de 'Extreme Fear' a 'Fear': giro de regimen de sentimiento",
              "value": 27,
              "fuente": "<omitido en el ejemplo publico>",
              "serie_8d": [
                27,
                25,
                "..."
              ],
              "as_of_utc": "2026-08-05T16:31:27Z",
              "maximo_8d": 29,
              "minimo_8d": 25,
              "latencia_s": 0.33,
              "delta_vs_ayer": 2,
              "classification": "Fear",
              "cambio_de_banda": true,
              "clasificacion_ayer": "Extreme Fear"
            }
          }
        }
      },
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 60
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "input": "latest"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "fear_greed",
            "result": {
              "senal": "el indice cambia de 'Extreme Fear' a 'Fear': giro de regimen de sentimiento",
              "value": 27,
              "fuente": "<omitido en el ejemplo publico>",
              "serie_8d": [
                27,
                25,
                "..."
              ],
              "as_of_utc": "2026-08-05T16:31:27Z",
              "maximo_8d": 29,
              "minimo_8d": 25,
              "latencia_s": 0.33,
              "delta_vs_ayer": 2,
              "classification": "Fear",
              "cambio_de_banda": true,
              "clasificacion_ayer": "Extreme Fear"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "properties": {
                  "input": {
                    "type": "string",
                    "description": "SYNTHORA fear-greed: indice de miedo/codicia con la VARIACION frente a ayer y el cruce de banda, no solo el valor. Fuente: alternative.me, fechada y con hash."
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 1
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/funding-rates",
      "description": "Real-time perpetual funding rates + mark price for any Binance futures symbol. Essential for delta-neutral and basis-trading agents. Free source, deterministic, instant JSON. $0.01 USDC via x402 on Base. SYNTHORA. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/funding-rates",
    "tags": [
      "perp funding rate",
      "perpetual funding",
      "funding rate",
      "delta neutral",
      "basis trading",
      "mark price"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Real-time perpetual funding rates + mark price for any Binance futures symbol. Essential for delta-neutral and basis-trading agents. Free source, deterministic, instant JSON. $0.01 USDC via x402 on Base. SYNTHORA. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "symbol": "BTCUSDT"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "funding-rates",
            "result": {
              "symbol": "BTCUSDT",
              "mark_price": "64266.30000000",
              "last_funding_rate": "0.00009163",
              "next_funding_time": 1783699200000
            },
            "provenance": {
              "url": "https://fapi.binance.com/fapi/v1/premiumIndex",
              "source": "SYNTHORA Perp Funding Rates"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "symbol"
                ],
                "properties": {
                  "symbol": {
                    "type": "string",
                    "description": "symbol"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/onchain",
      "description": "SYNTHORA Onchain Primitives: multichain (Base/Ethereum/Polygon/Arbitrum/Optimism) transaction receipts, tx lookup, wallet nonce, contract/proxy (EIP-1967) detection, ENS resolution, ERC20 + native balances, contract introspection. Deterministic, Ed25519-signed. 0.001 USDC via x402 on Base. First call FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment); after that 0.001 USDC per call.",
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/onchain",
    "tags": [
      "on-chain primitives",
      "transaction receipt",
      "wallet nonce",
      "ENS resolution",
      "ERC20 balance",
      "contract detection",
      "EIP-1967 proxy"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "SYNTHORA Onchain Primitives: multichain (Base/Ethereum/Polygon/Arbitrum/Optimism) transaction receipts, tx lookup, wallet nonce, contract/proxy (EIP-1967) detection, ENS resolution, ERC20 + native balances, contract introspection. Deterministic, Ed25519-signed. 0.001 USDC via x402 on Base. First call FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment); after that 0.001 USDC per call.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "op": "ens",
            "name": "vitalik.eth"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "ok",
              "niche"
            ],
            "properties": {
              "ok": {
                "type": "boolean"
              },
              "error": {
                "type": "string"
              },
              "niche": {
                "type": "string"
              },
              "result": {
                "type": "object",
                "properties": {
                  "op": {
                    "type": "string"
                  },
                  "ops": {
                    "type": "array"
                  },
                  "chain": {
                    "type": "string"
                  },
                  "chains": {
                    "type": "array"
                  },
                  "signed": {
                    "type": "boolean"
                  },
                  "source": {
                    "type": "string"
                  },
                  "address": {
                    "type": "string"
                  },
                  "is_contract": {
                    "type": "boolean"
                  }
                }
              },
              "receipt": {
                "type": "object"
              }
            }
          },
          "example": {
            "ok": true,
            "niche": "onchain",
            "result": {
              "op": "ens",
              "name": "vitalik.eth",
              "found": true,
              "signed": "ed25519",
              "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "op"
                ],
                "properties": {
                  "op": {
                    "enum": [
                      "ens",
                      "receipt",
                      "tx",
                      "nonce",
                      "code",
                      "proxy",
                      "balance",
                      "erc20-balance",
                      "contract",
                      "network"
                    ],
                    "type": "string",
                    "description": "Operation to perform"
                  },
                  "hash": {
                    "type": "string",
                    "description": "Tx hash 0x… (receipt/tx)"
                  },
                  "name": {
                    "type": "string",
                    "description": "ENS name e.g. vitalik.eth (ens)"
                  },
                  "chain": {
                    "enum": [
                      "base",
                      "ethereum",
                      "polygon",
                      "arbitrum",
                      "optimism"
                    ],
                    "type": "string",
                    "description": "Chain (default ethereum)"
                  },
                  "token": {
                    "type": "string",
                    "description": "ERC20 token address (erc20-balance)"
                  },
                  "address": {
                    "type": "string",
                    "description": "Address 0x… (nonce/code/proxy/balance/contract)"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "30000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/registry-watch",
      "description": "Registry change history from stored registry_delta records, ordered by database timestamp and ID. Query with since (cursor or ISO8601), slug and limit (1..200). Source timestamps and coverage are included; records may be historical and do not prove current endpoint operation, payments or identity. 0.03 USDC on Base.",
      "maxAmountRequired": "30000",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/registry-watch",
    "tags": [
      "x402",
      "base",
      "feed"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Registry change history from stored registry_delta records, ordered by database timestamp and ID. Query with since (cursor or ISO8601), slug and limit (1..200). Source timestamps and coverage are included; records may be historical and do not prove current endpoint operation, payments or identity. 0.03 USDC on Base.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "limit": 50
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "ok",
              "niche"
            ],
            "properties": {
              "ok": {
                "type": "boolean"
              },
              "error": {
                "type": "string"
              },
              "niche": {
                "type": "string"
              },
              "result": {
                "type": "object",
                "properties": {
                  "feed": {
                    "type": "array"
                  },
                  "as_of": {
                    "type": "string"
                  },
                  "count": {
                    "type": "number"
                  },
                  "cursor": {
                    "type": "string"
                  },
                  "source": {
                    "type": "string"
                  }
                }
              },
              "receipt": {
                "type": "object"
              }
            }
          },
          "example": {
            "ok": true,
            "niche": "registry_watch",
            "result": {},
            "receipt": {
              "alg": "ed25519"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "properties": {
                  "slug": {
                    "type": "string",
                    "pattern": "^[A-Za-z0-9_-]{1,128}$",
                    "description": "Optional exact stored-event slug filter. Surrounding whitespace is trimmed; matching is by equality, not substring search. latest/last/recent/ultimos clear the filter; omitting it requests recent global stored events. This selects historical registry events, not live endpoint health."
                  },
                  "limit": {
                    "type": "integer",
                    "default": 50,
                    "maximum": 200,
                    "minimum": 1,
                    "description": "Maximum stored events requested: advertised integer range 1-200, default 50. The current parser converts to an integer and clamps to 1-200; nonnumeric conversion fails. With no since it takes the recent tail, returned chronologically. This limit is not a freshness or coverage guarantee."
                  },
                  "since": {
                    "type": "string",
                    "description": "Exclusive cursor del_... or timezone-aware ISO8601 timestamp"
                  }
                },
                "additionalProperties": false
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/lifi-bridge-route-quote",
      "description": "Returns the best cross-chain bridge/swap route for a given source chain, destination chain, tokens and amount from LI.FI, including chosen bridge tool, estimated output, fees and gas. Powers autonomous cross-chain agents and agent-to-agent treasury movers that pick the cheapest, fastest bridge path for a transfer. Pay-per-call via x402 on Base. No charge on upstream failure.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/lifi-bridge-route-quote",
    "tags": [
      "lifi"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Returns the best cross-chain bridge/swap route for a given source chain, destination chain, tokens and amount from LI.FI, including chosen bridge tool, estimated output, fees and gas. Powers autonomous cross-chain agents and agent-to-agent treasury movers that pick the cheapest, fastest bridge path for a transfer. Pay-per-call via x402 on Base. No charge on upstream failure.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "toChain": "1",
            "toToken": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
            "fromChain": "8453",
            "fromToken": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "fromAmount": "1000000",
            "fromAddress": "0x15d30032981a77164ee9546542Ae4becDAc81cc8"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "lifi_bridge_route_quote",
            "result": {},
            "receipt": {
              "alg": "ed25519"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "properties": {
                  "input": {
                    "type": "string",
                    "description": "Returns the best cross-chain bridge/swap route for a given source chain, destination chain, tokens and amount from LI.FI, including chosen bridge tool, estimated output, fees and gas. Powers autonomou"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/mcpscan",
      "description": "MCP Server Security Scan: probes an MCP server (JSON-RPC initialize + tools/list) and applies a deterministic rule engine over its tools — embedded secrets, dangerous shell/exec/filesystem capabilities, prompt-injection surface, hidden unicode, permissive input schemas, and auth/TLS/CORS headers — returning a security_score + findings[]. The trust layer for the agent economy. Zero-LLM, Ed25519-signed. 0.05 USDC via x402 on Base. SYNTHORA.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/mcpscan",
    "tags": [
      "MCP server security",
      "MCP scan",
      "tool security audit",
      "prompt injection surface",
      "agent security"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "MCP Server Security Scan: probes an MCP server (JSON-RPC initialize + tools/list) and applies a deterministic rule engine over its tools — embedded secrets, dangerous shell/exec/filesystem capabilities, prompt-injection surface, hidden unicode, permissive input schemas, and auth/TLS/CORS headers — returning a security_score + findings[]. The trust layer for the agent economy. Zero-LLM, Ed25519-signed. 0.05 USDC via x402 on Base. SYNTHORA.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "manifest": {
              "name": "demo-mcp",
              "tools": [
                {
                  "name": "search",
                  "description": "web search"
                },
                {
                  "name": "fetch",
                  "description": "http fetch"
                }
              ],
              "version": "1.0.0"
            }
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "mcp_scan",
            "result": {
              "counts": {
                "low": 0,
                "high": 2,
                "medium": 2,
                "critical": 1
              },
              "signed": "ed25519",
              "target": "https://mcp.example.dev/mcp",
              "verdict": "critico",
              "findings": [
                {
                  "id": "MCP-S01",
                  "rule": "secret_in_manifest",
                  "tool": "read_file",
                  "detail": "openai_key embedded in tool",
                  "severity": "critical"
                }
              ],
              "tools_scanned": 2,
              "security_score": 14
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "properties": {
                  "url": {
                    "type": "string",
                    "description": "MCP server URL (Streamable-HTTP endpoint)"
                  },
                  "manifest": {
                    "type": "object",
                    "description": "Or paste the MCP manifest (serverInfo + tools) directly"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/coingecko-crypto-price-history",
      "description": "Historical daily price, market-cap and volume time-series for a coin in any fiat currency from CoinGecko's keyless market_chart endpoint (JSON). Serves autonomous crypto-vs-fiat trend agents, backtesting bots, and agent-to-agent analytics needing multi-day price series without a key. Pay-per-call via x402 on Base. No charge on upstream failure.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/coingecko-crypto-price-history",
    "tags": [
      "coingecko"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Historical daily price, market-cap and volume time-series for a coin in any fiat currency from CoinGecko's keyless market_chart endpoint (JSON). Serves autonomous crypto-vs-fiat trend agents, backtesting bots, and agent-to-agent analytics needing multi-day price series without a key. Pay-per-call via x402 on Base. No charge on upstream failure.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "id": "bitcoin",
            "days": 7,
            "interval": "daily",
            "vs_currency": "usd"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "coingecko_crypto_price_history",
            "result": {},
            "receipt": {
              "alg": "ed25519"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "properties": {
                  "input": {
                    "type": "string",
                    "description": "Historical daily price, market-cap and volume time-series for a coin in any fiat currency from CoinGecko's keyless market_chart endpoint (JSON). Serves autonomous crypto-vs-fiat trend agents, backtest"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/protocol-revenue",
      "description": "Real-time fee revenue and 24h/7d/30d earnings for any DeFi protocol via DefiLlama Fees API.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/protocol-revenue",
    "tags": [
      "protocol revenue",
      "protocol fees",
      "DeFi earnings"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Real-time fee revenue and 24h/7d/30d earnings for any DeFi protocol via DefiLlama Fees API.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "protocol": "uniswap"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "protocol_revenue",
            "result": {},
            "receipt": {
              "alg": "ed25519"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "properties": {
                  "input": {
                    "type": "string",
                    "description": "Real-time fee revenue and 24h/7d/30d earnings for any DeFi protocol via DefiLlama Fees API."
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/defidata",
      "description": "SYNTHORA defidata: deFi market-data feed: perp open interest, funding rate, mark price and a directional signal across top assets (BTC/ETH/SOL/…), plus optional per-asset verdict. Deterministic, Ed25519-signed. SYNTHORA. First call FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment).",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/defidata",
    "tags": [
      "crypto",
      "markets",
      "derivatives",
      "price",
      "defi",
      "onchain"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "SYNTHORA defidata: deFi market-data feed: perp open interest, funding rate, mark price and a directional signal across top assets (BTC/ETH/SOL/…), plus optional per-asset verdict. Deterministic, Ed25519-signed. SYNTHORA. First call FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment).",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "slug": "defi-data",
            "limit": 5
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "defi_data",
            "result": {
              "feed": [
                {
                  "asset": "BTC",
                  "signal": "neutral",
                  "mark_price": 97500,
                  "funding_rate": 0.000012,
                  "open_interest_usd": 2209942387.46
                }
              ],
              "slug": "defi-data",
              "as_of": 1783322000,
              "count": 3,
              "signed": "ed25519"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "properties": {
                  "slug": {
                    "type": "string",
                    "description": "Use defi-data for the top-assets feed"
                  },
                  "asset": {
                    "type": "string",
                    "description": "Ticker for single-asset detail, e.g. BTC"
                  },
                  "limit": {
                    "type": "integer",
                    "description": "Feed size (default all top assets)"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/polymarket-markets",
      "description": "Search prediction markets ACROSS PLATFORMS (Polymarket + Kalshi) in one call: live prices, implied probability, volume, liquidity, end date and market conviction. Server-side search that actually finds the market (bitcoin, fed, election, geopolitics). For trading and forecasting agents tracking event odds. $0.05 USDC x402 Base. Input: {\"input\": \"bitcoin\"} (optional filter). Ed25519-signed.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/polymarket-markets",
    "tags": [
      "prediction-markets",
      "odds",
      "crypto",
      "x402",
      "signed-verdict",
      "usdc"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Search prediction markets ACROSS PLATFORMS (Polymarket + Kalshi) in one call: live prices, implied probability, volume, liquidity, end date and market conviction. Server-side search that actually finds the market (bitcoin, fed, election, geopolitics). For trading and forecasting agents tracking event odds. $0.05 USDC x402 Base. Input: {\"input\": \"bitcoin\"} (optional filter). Ed25519-signed.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "input": "bitcoin"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "ok",
              "niche"
            ],
            "properties": {
              "ok": {
                "type": "boolean"
              },
              "error": {
                "type": "string"
              },
              "niche": {
                "type": "string"
              },
              "result": {
                "type": "object",
                "properties": {
                  "nota": {
                    "type": "string"
                  },
                  "filtro": {
                    "type": "string"
                  },
                  "fuente": {
                    "type": "string"
                  },
                  "markets": {
                    "type": "array"
                  },
                  "as_of_utc": {
                    "type": "string"
                  },
                  "latencia_s": {
                    "type": "number"
                  },
                  "n_mercados": {
                    "type": "number"
                  },
                  "plataformas": {
                    "type": "array"
                  },
                  "sin_coincidencias": {
                    "type": "boolean"
                  },
                  "mercados_examinados": {
                    "type": "number"
                  }
                }
              },
              "receipt": {
                "type": "object"
              }
            }
          },
          "example": {
            "ok": true,
            "niche": "polymarket_markets",
            "result": {
              "nota": "ningun mercado activo coincide con ese filtro; no se devuelven otros para no dar por bueno lo que no se pidio",
              "filtro": "bitcoin",
              "fuente": "<omitido en el ejemplo publico>",
              "markets": [],
              "as_of_utc": "2026-08-05T16:31:36Z",
              "latencia_s": 0.19,
              "n_mercados": 0,
              "sin_coincidencias": true,
              "mercados_minados__observador_1": 0
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "properties": {
                  "input": {
                    "type": "string",
                    "description": "Search prediction markets ACROSS PLATFORMS (Polymarket + Kalshi) in one call: live prices, implied probability, volume, liquidity, end date and market conviction. Server-side search that actually find"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "100000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/slippage",
      "description": "Slippage and price-impact oracle for any crypto pair: estimates expected slippage, price impact and effective execution price for a given trade size from live order-book depth and liquidity. Answers 'expected slippage for this swap', 'price impact of my order', 'orderbook liquidity / slippage', 'how much will I move the market' for execution and routing agents. Deterministic, Ed25519-signed. $0.001 USDC via x402 on Base. First call FREE per wallet — send header X-WALLET: 0x<your Base address>. No charge on upstream failure. SYNTHORA.",
      "maxAmountRequired": "100000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/slippage",
    "tags": [
      "slippage estimate",
      "orderbook liquidity / slippage",
      "price impact",
      "expected slippage",
      "execution cost",
      "slippage oracle"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Slippage and price-impact oracle for any crypto pair: estimates expected slippage, price impact and effective execution price for a given trade size from live order-book depth and liquidity. Answers 'expected slippage for this swap', 'price impact of my order', 'orderbook liquidity / slippage', 'how much will I move the market' for execution and routing agents. Deterministic, Ed25519-signed. $0.001 USDC via x402 on Base. First call FREE per wallet — send header X-WALLET: 0x<your Base address>. No charge on upstream failure. SYNTHORA.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "chain": "base",
            "fee_tier": 500,
            "token_in": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "amount_in": 1000000,
            "token_out": "0x4200000000000000000000000000000000000006"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "slippage_oracle",
            "result": {},
            "receipt": {
              "alg": "ed25519"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "chain"
                ],
                "properties": {
                  "chain": {
                    "type": "string"
                  },
                  "fee_tier": {
                    "type": "integer"
                  },
                  "token_in": {
                    "type": "string"
                  },
                  "amount_in": {
                    "type": "integer"
                  },
                  "token_out": {
                    "type": "string"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/businessrisk",
      "description": "Counterparty business-risk verdict: one call fuses OFAC/EU sanctions screening, on-chain wallet reputation, and token/pool contract risk into a single weighted risk_score (0-100), a kill/pivot/proceed verdict, and reason_codes naming which sub-signal drove it. Weights: sanctions 0.50, wallet 0.30, token 0.20, renormalised if a leg is unavailable; a sanctions hit is a hard KILL floor. Degrades gracefully — a failed sub-check is dropped, never crashes the verdict. Deterministic, no LLM, Ed25519-signed. 0.05 USDC via x402 on Base. SYNTHORA.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/businessrisk",
    "tags": [
      "counterparty risk",
      "business risk score",
      "sanctions screening",
      "wallet reputation",
      "token risk"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Counterparty business-risk verdict: one call fuses OFAC/EU sanctions screening, on-chain wallet reputation, and token/pool contract risk into a single weighted risk_score (0-100), a kill/pivot/proceed verdict, and reason_codes naming which sub-signal drove it. Weights: sanctions 0.50, wallet 0.30, token 0.20, renormalised if a leg is unavailable; a sanctions hit is a hard KILL floor. Degrades gracefully — a failed sub-check is dropped, never crashes the verdict. Deterministic, no LLM, Ed25519-signed. 0.05 USDC via x402 on Base. SYNTHORA.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "address": "0x28C6c06298d514Db089934071355E5743bf21d60"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "business_risk",
            "result": {
              "checks": {
                "wallet_rep": "ok",
                "defi_verdict": "ok",
                "aml_screening": "ok"
              },
              "summary": "PIVOT: elevated risk (62.5/100)...",
              "verdict": "pivot",
              "risk_tier": "elevated",
              "disclaimer": "Deterministic composite risk verdict... Ed25519-signed.",
              "risk_score": 62.5,
              "sub_results": {
                "wallet_rep": {},
                "defi_verdict": {},
                "aml_screening": {}
              },
              "reason_codes": [
                "WALLET_SUSPICIOUS: reputation=45/100 (0 transacciones)",
                "TOKEN_CAUTION: contract risk_level=medium, verdict=monitor"
              ],
              "signals_used": 3,
              "token_address": "0x8335...2913",
              "weights_applied": {
                "wallet_rep": 0.3,
                "defi_verdict": 0.2,
                "aml_screening": 0.5
              },
              "counterparty_address": "0x28C6...1d60"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "anyOf": [
                  {
                    "required": [
                      "address"
                    ]
                  },
                  {
                    "required": [
                      "token"
                    ]
                  }
                ],
                "properties": {
                  "token": {
                    "type": "string",
                    "description": "Token or pool contract (0x-40hex) — screened for contract risk"
                  },
                  "address": {
                    "type": "string",
                    "description": "Counterparty EVM wallet (0x-40hex) — screened for sanctions + reputation"
                  },
                  "apy_pct": {
                    "type": "number",
                    "description": "Optional APY passthrough to the DeFi risk leg"
                  },
                  "tvl_usd": {
                    "type": "number",
                    "description": "Optional TVL passthrough to the DeFi risk leg"
                  },
                  "protocol": {
                    "type": "string",
                    "description": "Optional protocol name for the token/pool"
                  },
                  "duration_days": {
                    "type": "integer",
                    "description": "Optional holding period passthrough"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/openinterest",
      "description": "SYNTHORA Open Interest Oracle: live perpetual futures open interest, funding rates, mark price, premium and crowded long/short signal for 230+ assets via Hyperliquid. Ed25519-signed. First call FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment).",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/openinterest",
    "tags": [
      "crypto",
      "markets",
      "derivatives",
      "price",
      "x402",
      "signed-verdict"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "SYNTHORA Open Interest Oracle: live perpetual futures open interest, funding rates, mark price, premium and crowded long/short signal for 230+ assets via Hyperliquid. Ed25519-signed. First call FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment).",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "asset": "BTC"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "ok",
              "niche"
            ],
            "properties": {
              "ok": {
                "type": "boolean"
              },
              "error": {
                "type": "string"
              },
              "niche": {
                "type": "string"
              },
              "result": {
                "type": "object",
                "properties": {
                  "note": {
                    "type": "string"
                  },
                  "asset": {
                    "type": "string"
                  },
                  "signed": {
                    "type": "boolean"
                  },
                  "source": {
                    "type": "string"
                  },
                  "total_perps": {
                    "type": "number"
                  },
                  "top_by_open_interest": {
                    "type": "array"
                  }
                }
              },
              "receipt": {
                "type": "object"
              }
            }
          },
          "example": {
            "ok": true,
            "niche": "open_interest",
            "result": {
              "asset": "BTC",
              "signal": "neutral",
              "signed": "ed25519",
              "mark_price": 97500,
              "funding_rate": 0.0000125,
              "open_interest_usd": 2260000000
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [],
                "properties": {
                  "asset": {
                    "type": "string",
                    "description": "Perp symbol e.g. BTC, ETH, SOL. Omit for top-10 by OI"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "5000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/llm-smart",
      "description": "SYNTHORA LLM Gateway SMART: OpenAI-compatible /v1/chat/completions pay-per-call, no API keys. Large free-tier models (llama-3.3-70b class) with automatic upstream failover, Ed25519-signed. 0.005 USDC via x402 on Base. POST {\"messages\":[{\"role\":\"user\",\"content\":\"...\"}]} (or {\"prompt\":\"...\"}).",
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/llm-smart",
    "tags": [
      "llm",
      "inference",
      "openai-compatible",
      "chat-completions",
      "x402",
      "usdc"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "SYNTHORA LLM Gateway SMART: OpenAI-compatible /v1/chat/completions pay-per-call, no API keys. Large free-tier models (llama-3.3-70b class) with automatic upstream failover, Ed25519-signed. 0.005 USDC via x402 on Base. POST {\"messages\":[{\"role\":\"user\",\"content\":\"...\"}]} (or {\"prompt\":\"...\"}).",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/cryptonews",
      "description": "SYNTHORA cryptonews: real-time crypto news headlines with sentiment, ranked by importance. Aggregates keyless RSS feeds (CryptoPanic, CoinDesk, CoinTelegraph, Decrypt, Bitcoin Magazine) into deduplicated, freshness-and-source-weighted top headlines, each scored with a lexical bull/bear sentiment (very_bullish.very_bearish) plus an overall market sentiment. Filter by asset (BTC, ETH, SOL, XRP, and more) to get only headlines about that coin. Built for trading and quant agents that need a cheap, fast crypto news + sentiment pulse. Ed25519-signed.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/cryptonews",
    "tags": [
      "sentiment",
      "market-intel",
      "crypto",
      "x402",
      "signed-verdict",
      "usdc"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "SYNTHORA cryptonews: real-time crypto news headlines with sentiment, ranked by importance. Aggregates keyless RSS feeds (CryptoPanic, CoinDesk, CoinTelegraph, Decrypt, Bitcoin Magazine) into deduplicated, freshness-and-source-weighted top headlines, each scored with a lexical bull/bear sentiment (very_bullish.very_bearish) plus an overall market sentiment. Filter by asset (BTC, ETH, SOL, XRP, and more) to get only headlines about that coin. Built for trading and quant agents that need a cheap, fast crypto news + sentiment pulse. Ed25519-signed.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "asset": "BTC",
            "limit": 10
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "ok",
              "niche"
            ],
            "properties": {
              "ok": {
                "type": "boolean"
              },
              "error": {
                "type": "string"
              },
              "niche": {
                "type": "string"
              },
              "result": {
                "type": "object",
                "properties": {
                  "op": {
                    "type": "string"
                  },
                  "asset": {
                    "type": "string"
                  },
                  "count": {
                    "type": "number"
                  },
                  "sources": {
                    "type": "array"
                  },
                  "headlines": {
                    "type": "array"
                  },
                  "fetched_at": {
                    "type": "string"
                  },
                  "sentiment_score": {
                    "type": "number"
                  },
                  "overall_sentiment": {
                    "type": "string"
                  }
                }
              },
              "receipt": {
                "type": "object"
              }
            }
          },
          "example": {
            "ok": true,
            "niche": "cryptonews",
            "result": {
              "asset": "BTC",
              "count": 2,
              "sources": [
                "CryptoPanic",
                "CoinDesk",
                "CoinTelegraph",
                "Decrypt",
                "BitcoinMagazine"
              ],
              "headlines": [
                {
                  "ts": "2026-07-08T09:12:00+00:00",
                  "url": "https://www.coindesk.com/example",
                  "score": 2.31,
                  "title": "Bitcoin surges past resistance as ETF inflows hit record",
                  "source": "CoinDesk",
                  "sentiment": "very_bullish"
                },
                {
                  "ts": "2026-07-08T08:40:00+00:00",
                  "url": "https://cointelegraph.com/example",
                  "score": 1.08,
                  "title": "Analysts warn of BTC pullback risk near key level",
                  "source": "CoinTelegraph",
                  "sentiment": "bearish"
                }
              ],
              "generated_at": "2026-07-08T09:15:00+00:00",
              "sentiment_score": 0.42,
              "overall_sentiment": "bullish"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [],
                "properties": {
                  "asset": {
                    "type": "string",
                    "description": "Optional ticker to filter headlines, e.g. BTC, ETH, SOL"
                  },
                  "limit": {
                    "type": "integer",
                    "maximum": 50,
                    "minimum": 1,
                    "description": "Max headlines to return (default 10)"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/perps",
      "description": "SYNTHORA Perps Snapshot: live Hyperliquid perpetual futures snapshot per asset — mark price, oracle price, hourly funding rate (with 8h and APR derivations), open interest (USD), premium and 24h volume for 230+ perps, keyless. Complements the Open Interest oracle with the raw single-shot data a trading agent needs. Ed25519-signed.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/perps",
    "tags": [
      "crypto",
      "markets",
      "derivatives",
      "price",
      "x402",
      "signed-verdict"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "SYNTHORA Perps Snapshot: live Hyperliquid perpetual futures snapshot per asset — mark price, oracle price, hourly funding rate (with 8h and APR derivations), open interest (USD), premium and 24h volume for 230+ perps, keyless. Complements the Open Interest oracle with the raw single-shot data a trading agent needs. Ed25519-signed.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "asset": "BTC"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "perps",
            "result": {
              "mark": 97500,
              "asset": "BTC",
              "oracle": 97490,
              "signed": "ed25519",
              "premium": 0.0001,
              "day_volume": 1850000000,
              "funding_rate": 0.0000125,
              "open_interest": 2260000000,
              "funding_apr_pct": 10.95
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [],
                "properties": {
                  "asset": {
                    "type": "string",
                    "description": "Perp symbol e.g. BTC, ETH, SOL. Omit for top-10 by open interest"
                  },
                  "limit": {
                    "type": "integer",
                    "description": "Rows when no asset given (1-50, default 10)"
                  },
                  "history": {
                    "type": "boolean",
                    "description": "Include recent 8h funding history for the asset (default true)"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/translate",
      "description": "SYNTHORA translate: translate any text between 100+ languages with automatic source-language detection. Preserves tone, formatting and placeholders. Deterministic JSON output, Ed25519-signed. SYNTHORA.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/translate",
    "tags": [
      "nlp",
      "language",
      "inference",
      "x402",
      "signed-verdict",
      "usdc"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "SYNTHORA translate: translate any text between 100+ languages with automatic source-language detection. Preserves tone, formatting and placeholders. Deterministic JSON output, Ed25519-signed. SYNTHORA.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "text": "Hello world",
            "target": "es"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "translate",
            "result": {
              "chars": 11,
              "signed": "ed25519",
              "target": "es",
              "detected": "en",
              "translation": "Hola mundo"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "text",
                  "target"
                ],
                "properties": {
                  "text": {
                    "type": "string",
                    "description": "Text to translate (max 4000 chars)"
                  },
                  "source": {
                    "type": "string",
                    "description": "Optional source language; auto-detected if omitted"
                  },
                  "target": {
                    "type": "string",
                    "description": "Target language ISO code or name, e.g. es, fr, Japanese"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/prediction-markets",
      "description": "Top prediction markets from Polymarket + Kalshi: implied probability, bid-ask spread, liquidity, volume and freshness seal. Essential feed for autonomous trading, political-risk and allocation agents. $0.001 USDC via x402 on Base. SYNTHORA. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/prediction-markets",
    "tags": [
      "prediction"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Top prediction markets from Polymarket + Kalshi: implied probability, bid-ask spread, liquidity, volume and freshness seal. Essential feed for autonomous trading, political-risk and allocation agents. $0.001 USDC via x402 on Base. SYNTHORA. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "1600000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/derivbundle",
      "description": "002 call (cheaper + fewer round-trips than buying each separately) 5 live datasets, partial degradation (never fails whole), Ed25519-signed First call FREE per wallet via X-WALLET header SYNTHORA.",
      "maxAmountRequired": "1600000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/derivbundle",
    "tags": [
      "crypto",
      "markets",
      "derivatives",
      "price",
      "defi",
      "onchain"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "002 call (cheaper + fewer round-trips than buying each separately) 5 live datasets, partial degradation (never fails whole), Ed25519-signed First call FREE per wallet via X-WALLET header SYNTHORA.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "asset": "BTC"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "ok",
              "niche"
            ],
            "properties": {
              "ok": {
                "type": "boolean"
              },
              "error": {
                "type": "string"
              },
              "niche": {
                "type": "string"
              },
              "result": {
                "type": "object",
                "properties": {
                  "asset": {
                    "type": "string"
                  },
                  "partial": {
                    "type": "boolean"
                  },
                  "datasets": {
                    "type": "object"
                  },
                  "datasets_ok": {
                    "type": "number"
                  },
                  "datasets_total": {
                    "type": "number"
                  }
                }
              },
              "receipt": {
                "type": "object"
              }
            }
          },
          "example": {
            "ok": true,
            "niche": "derivbundle",
            "result": {
              "asset": "BTC",
              "partial": false,
              "datasets": {},
              "datasets_ok": 4,
              "datasets_total": 4
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [],
                "properties": {
                  "asset": {
                    "type": "string",
                    "description": "asset symbol e.g. BTC/ETH"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "100000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/bridgerisk",
      "description": "Assess the security risk of a cross-chain bridge before routing funds through it. Combines live DefiLlama TVL and audit status with the full bridge-hack incident history and known-exploit analysis into a 0-100 risk score, a safe/caution/high_risk/critical signal and explicit risk factors. Use it for bridge risk and cross-chain due diligence. Ed25519-signed. 0.002 USDC on Base.",
      "maxAmountRequired": "100000",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/bridgerisk",
    "tags": [
      "bridge risk",
      "cross-chain bridge safety",
      "bridge hack history",
      "cross-chain due diligence"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Assess the security risk of a cross-chain bridge before routing funds through it. Combines live DefiLlama TVL and audit status with the full bridge-hack incident history and known-exploit analysis into a 0-100 risk score, a safe/caution/high_risk/critical signal and explicit risk factors. Use it for bridge risk and cross-chain due diligence. Ed25519-signed. 0.002 USDC on Base.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "bridge": "stargate",
            "to_chain": "base",
            "amount_usd": 5000,
            "from_chain": "ethereum"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "ok",
              "niche"
            ],
            "properties": {
              "ok": {
                "type": "boolean"
              },
              "error": {
                "type": "string"
              },
              "niche": {
                "type": "string"
              },
              "result": {
                "type": "object",
                "properties": {
                  "bridge": {
                    "type": "string"
                  },
                  "signal": {
                    "type": "string"
                  },
                  "to_chain": {
                    "type": "string"
                  },
                  "amount_usd": {
                    "type": "number"
                  },
                  "from_chain": {
                    "type": "string"
                  },
                  "risk_score": {
                    "type": "number"
                  },
                  "audit_status": {
                    "type": "string"
                  },
                  "risk_factors": {
                    "type": "array"
                  },
                  "bridge_tvl_usd": {
                    "type": "number"
                  },
                  "volume_24h_usd": {
                    "type": "number"
                  }
                }
              },
              "receipt": {
                "type": "object"
              }
            }
          },
          "example": {
            "ok": true,
            "niche": "bridge_risk",
            "result": {
              "bridge": "stargate",
              "signal": "safe",
              "risk_score": 0,
              "audit_status": "audited",
              "risk_factors": [],
              "bridge_tvl_usd": 0,
              "incident_history": []
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "bridge"
                ],
                "properties": {
                  "bridge": {
                    "type": "string",
                    "description": "Bridge name e.g. stargate, across, hop, wormhole"
                  },
                  "to_chain": {
                    "type": "string"
                  },
                  "amount_usd": {
                    "type": "number"
                  },
                  "from_chain": {
                    "type": "string"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/regwatch",
      "description": "SYNTHORA regwatch: x402 Registry Watch: signed Ed25519 deltas of the x402/A2A endpoint registry (payTo/listings/endpoints). Pay-per-event feed pull. POST {\"since\":\"<cursor|ISO>\",\"slug\":\"<slug>\",\"limit\":<=200}.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/regwatch",
    "tags": [
      "registry",
      "monitoring",
      "x402",
      "signed-verdict",
      "usdc"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "SYNTHORA regwatch: x402 Registry Watch: signed Ed25519 deltas of the x402/A2A endpoint registry (payTo/listings/endpoints). Pay-per-event feed pull. POST {\"since\":\"<cursor|ISO>\",\"slug\":\"<slug>\",\"limit\":<=200}.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/sanctions-screen",
      "description": "SYNTHORA sanctions-screen: sanctions screening with MATCH / CLEAR verdict over 4 official downloads (OFAC SDN primary and alias lists, UN, OpenSanctions). Multilingual, tested on Cyrillic transliterations.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/sanctions-screen",
    "tags": [
      "sanctions"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "SYNTHORA sanctions-screen: sanctions screening with MATCH / CLEAR verdict over 4 official downloads (OFAC SDN primary and alias lists, UN, OpenSanctions). Multilingual, tested on Cyrillic transliterations.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "name": "Vladimir Putin"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "sanctions_screen",
            "result": {},
            "receipt": {
              "alg": "ed25519"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "properties": {
                  "input": {
                    "type": "string",
                    "description": "SYNTHORA sanctions-screen: sanctions screening with MATCH / CLEAR verdict over 4 official downloads (OFAC SDN primary and alias lists, UN, OpenSanctions). Multilingual, tested on Cyrillic transliterat"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/dex-pair-price",
      "description": "Real-time on-chain DEX price, liquidity and 24h volume for any pool/token on any chain via GeckoTerminal. For DeFi routing agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/dex-pair-price",
    "tags": [
      "DEX price",
      "pool liquidity",
      "on-chain price",
      "token price",
      "DEX pair"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Real-time on-chain DEX price, liquidity and 24h volume for any pool/token on any chain via GeckoTerminal. For DeFi routing agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "network": "base",
            "token_address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "dex-pair-price",
            "result": {
              "network": "base",
              "liquidity": null,
              "price_usd": "1.0040515644",
              "volume_24h": null,
              "token_address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "provenance": {
              "url": "https://api.geckoterminal.com/api/v2/networks/base/tokens",
              "source": "SYNTHORA DEX Pair Price"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "network",
                  "token_address"
                ],
                "properties": {
                  "network": {
                    "type": "string",
                    "description": "network"
                  },
                  "token_address": {
                    "type": "string",
                    "description": "token_address"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/prediction",
      "description": "Prediction Market Probability Oracle — real Polymarket odds (p_yes/p_no, volume, liquidity), not LLM guesses. POST a question; Ed25519-signed. For agents needing calibrated event probabilities.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/prediction",
    "tags": [
      "prediction"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Prediction Market Probability Oracle — real Polymarket odds (p_yes/p_no, volume, liquidity), not LLM guesses. POST a question; Ed25519-signed. For agents needing calibrated event probabilities.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "question": "Will any player have 1,750+ receiving yards in the 2026-27 NFL regular season?"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "prediction_oracle",
            "result": {},
            "receipt": {
              "alg": "ed25519"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "properties": {
                  "input": {
                    "type": "string",
                    "description": "Prediction Market Probability Oracle — real Polymarket odds (p_yes/p_no, volume, liquidity), not LLM guesses. POST a question; Ed25519-signed. For agents needing calibrated event probabilities."
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/ohlcv-candles",
      "description": "Real-time and historical OHLCV candles (open/high/low/close/volume) for any crypto pair, any interval. For backtesting and signal agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/ohlcv-candles",
    "tags": [
      "OHLCV candles",
      "OHLCV candles for backtest",
      "candlestick data",
      "price history",
      "backtest data",
      "open high low close volume"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "Real-time and historical OHLCV candles (open/high/low/close/volume) for any crypto pair, any interval. For backtesting and signal agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "limit": 24,
            "symbol": "ETHUSDT",
            "interval": "1h"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "niche": "ohlcv-candles",
            "result": {}
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "symbol",
                  "interval",
                  "limit"
                ],
                "properties": {
                  "limit": {
                    "type": "integer",
                    "description": "limit"
                  },
                  "symbol": {
                    "type": "string",
                    "description": "symbol"
                  },
                  "interval": {
                    "type": "string",
                    "description": "interval"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}

{
  "menu": {
    "sla": "https://api.hergertsynthora.com/sla",
    "menu": "https://api.hergertsynthora.com/llms.txt",
    "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
    "terms": "https://hergertsynthora.com/terms",
    "catalog": "https://catalog.hergertsynthora.com/catalog.json",
    "openapi": "https://api.hergertsynthora.com/openapi.json"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
      "amount": "320000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.hergertsynthora.com/v1/identity-risk",
      "description": "SYNTHORA identity-risk: brand-impersonation verdict (AUTHENTIC / DOUBTFUL / ACTIVE_IMPERSONATION) over decentralised social identities, correlated across independent sources.",
      "maxAmountRequired": "320000",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeTier": {
    "note": "send header X-WALLET: 0x<your Base address> for a free trial",
    "header": "X-WALLET",
    "callsPerWallet": 1
  },
  "resource": {
    "url": "https://api.hergertsynthora.com/v1/identity-risk",
    "tags": [
      "risk"
    ],
    "iconUrl": "https://api.hergertsynthora.com/icon.svg",
    "mimeType": "application/json",
    "description": "SYNTHORA identity-risk: brand-impersonation verdict (AUTHENTIC / DOUBTFUL / ACTIVE_IMPERSONATION) over decentralised social identities, correlated across independent sources.",
    "serviceName": "SYNTHORA"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "input": "vitalik.eth"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "marca": "vitalik.eth",
            "signed": "ed25519",
            "senales": [
              {
                "pts": 1,
                "code": "I1B_MENCION_CON_ADORNO",
                "fuentes": [
                  "bluesky-search"
                ],
                "cruza_fuentes": 1
              }
            ],
            "producto": "identity-risk",
            "veredicto": {
              "banda": "AUTENTICO",
              "hallazgo": "0 typosquat accounts and 1 mention with decoration; 0 signals cross >=2 sources",
              "confianza": "media",
              "score_0_100": 1
            },
            "control_calidad": {
              "apto_para_entrega": true,
              "score_es_determinista": true
            },
            "cadena_de_custodia": {
              "esquema": "cadena-de-custodia-v1"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "properties": {
                  "input": {
                    "type": "string",
                    "description": "SYNTHORA identity-risk: brand-impersonation verdict (AUTHENTIC / DOUBTFUL / ACTIVE_IMPERSONATION) over decentralised social identities, correlated across independent sources."
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "ok": {
                  "type": "boolean"
                },
                "type": "object",
                "niche": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "delivery": {
      "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
      "order": "compute -> failure gate -> verify -> settle -> deliver",
      "scope": "this covers service FAILURE, not verdict quality",
      "policy": "no-charge-on-service-failure",
      "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
      "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
    },
    "signature": {
      "alg": "ed25519",
      "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
      "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
      "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
      "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
      "sigEncoding": "hex(64B raw)",
      "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
    }
  },
  "x402Version": 2
}